You can check out the SLOOW – Software Library Optimizing Obligatory Waving – control method that allows you to control Gmail with a Kinect sensor as if Gmail Motion were a real product. The video is worth watching, if only for the send action at the end.

While we are at the edge of motion control, the technology is finally reaching the availability, affordability and usability that it needs to reach out and take a hold of our future computer interactions. Imagine a system that relies on the amazing Predator motion tracking system to allow for natural motion controls of our computers, tablets and smart phones — which are increasingly shipping with front facing cameras and kickstands.

You may think that the technology won’t replace our current interactions, but if we went back five to seven years, you’d probably say the same thing about touchscreen keyboards, but look how fast a nation of smart phone addicts have converted to a new way of interacting with smart phones and tablets.